CRH2512F1R80E04S 2512 1.8Ω 2W ±1% Tolerance High Power Thick Film Chip Resistor
1.8Ω Thick Film Chip Resistor
,2W High Power Chip Resistor
,±1% Tolerance 2512 Chip Resistor
Within TT Electronics' thick film chip resistor portfolio, the CRH series stands out for its high power density and consistent electrical characteristics. Featuring a 2512 package size, this series delivers 2W rated power within a compact footprint, addressing the stringent demands of industrial power supplies, automotive electronics, and communication equipment for space-efficient high-power resistors. The CRH2512F1R80E04S, a representative model with 1.8Ω resistance, combines low-ohm precision with high power handling, delivering strong performance in current sensing, power distribution, and load matching applications.
The CRH2512F1R80E04S follows TT Electronics' standard nomenclature:
| Field | Meaning |
|---|---|
| CRH | Thick film high-power chip resistor series |
| 2512 | Package dimensions: 6.4mm × 3.2mm |
| F | Tolerance: ±1% |
| 1R80 | Nominal resistance 1.8Ω, R denotes decimal point |
| E04 | Rated power 2W, operating temperature -55℃~+155℃ |
| S | Tape and reel packaging for automated SMT |
This model employs an alumina ceramic substrate with thick film resistive paste fired at high temperature to form a stable resistive element. The termination uses a three-layer structure (silver/nickel/tin) ensuring reliable solderability and long-term oxidation resistance.
| Parameter | Specification |
|---|---|
| Nominal Resistance | 1.8Ω |
| Resistance Tolerance | ±1% |
| Rated Power | 2W (@70℃) |
| Package Size | 2512 (6.4mm×3.2mm) |
| Temperature Coefficient | ±100ppm/℃ |
| Operating Temperature | -55℃ ~ +155℃ |
| Max Working Voltage | 200V |
| Insulation Resistance | ≥10GΩ |
| Soldering Heat Resistance | 260℃/10s |
At 70℃ ambient, this resistor sustains 2W continuous load with minimal drift thanks to its ±100ppm/℃ TCR. The 1.8Ω low resistance paired with ±1% accuracy suits precision current sampling circuits.
High Power-to-Size Ratio: The 2512 package achieves 2W power handling, approximately 30% higher power density than conventional thick film resistors—an evident advantage in space-constrained PCB designs.
Low Temperature Coefficient: The ±100ppm/℃ TCR ensures minimal resistance variation across temperature swings, maintaining sampling accuracy in wide-temperature environments.
Robust Termination: The three-layer terminal structure passes relevant AEC-Q200 test items, with anti-sulfuration performance and solder adhesion meeting industrial-grade standards.
RoHS Compliant: Lead-free and environmentally friendly, meeting EU RoHS 2.0 and REACH regulations for export-oriented electronic products.
Switching Power Supply Current Sensing: In DC-DC converters and AC-DC adapters, the CRH2512F1R80E04S serves as a sense resistor in the power path. At 2A current, the 1.8Ω resistance generates a 3.6V drop for downstream operational amplifier acquisition. The 2512 1.8R 2W resistor provides ample power margin, eliminating thermal failure risks under heavy current surges.
Motor Drive Current Limiting: In stepper motor and BLDC driver boards, this part handles phase current detection and overcurrent protection triggering. The low resistance minimizes additional power loss, while the 2W rating withstands inrush currents during motor startup.
LED Lighting Constant Current Source: In high-power LED driver circuits, the 1.8Ω sense resistor works with constant-current ICs for precise current regulation. The thick film structure dissipates heat more effectively than standard chip resistors, extending overall luminaire lifespan.
Automotive Electronics: In onboard chargers and BMS battery management systems, this model meets AEC-Q200 Grade 1 temperature requirements, adapting to under-hood high-temperature environments.
In the domestic electronic component distribution market, Shenzhen Shunhai Technology Co., Ltd. serves as a core authorized distributor for TT Electronics resistors, maintaining full CRH series inventory. The company provides factory-direct technical support and volume pricing programs. Engineers and procurement staff may contact Shunhai Technology for CRH2512F1R80E04S sample requests and lead-time inquiries.
HuaNian Mall operates as an online electronic component procurement platform, hosting complete TT Electronics thick film chip resistor model data with support for small-quantity spot purchases. Users can directly search for 2512 1.8R 2W resistors on this platform to check real-time inventory and pricing, shortening material confirmation cycles during the R&D phase.
The CRH2512F1R80E04S leverages its precise 1.8Ω resistance, 2W high-power capacity, and standard 2512 package to become a preferred component for current sensing circuits in industrial and consumer electronics. Designers should evaluate actual operating current and thermal conditions during selection to ensure long-term operation within safe power margins. Procuring through authorized distribution channels effectively mitigates quality risks associated with * products.
